Fox: SPECIES OF CYPRIPEDIUM. 439 



leaves are strongly pubescent, the remaining portions being 

 strigosely hairy to sub-glabrous, while the characteristic mar- 

 ginal vein is strongly ciliate. The peduncle, nine to fifteen 

 cm. high is stout and somewhat costate. The erect bract is 

 eight to ten cm. long, lanceolate to elliptico-lanceolate. The 

 flowers, one or two, rarely three are large and showy. The 

 sepals, three to four cm. long are greenish white, broadly 

 ovate, pointed, the two lower sepals completely united, while 

 the upper sepal is erect. The two lateral petals are white, 

 narrower than the sepals, one-half as wide as long and patent. 

 The labellum is four to five cm. long, slightly drooping, hori- 

 zontally flattened, the margin of the orifice being deeply in- 

 flected. The color is pinkish white to rose pink, with deep 

 wine markings about the opening, shading into delicate veins 

 toward the base, along the interior of which is a heavy, hairy 

 ridge from the column round to the orifice. The sterile stam- 

 en, two cm. long is broadly spatulate with a strong mid rib and 

 spotted with brown. The pollen of the fertile stamens is 

 powdery. ^ - The column is but slightly declined, and the broad, 

 fleshy stigma is often distinctly tri-lobed. The ovary is large, 

 four cm. long, one to one and one-half cm. in diameter, strongly 

 ribbed, the ridges beariag glandular red-tipped hairs. 



Cypripedium reginae Walt, is found in peat bogs and tama- 

 rack swamps from Nova Scotia to Minnesota, on the northern 

 line and in all the states east of the Mississippi River. Iowa is 

 the only other state west of this boundary, at present, report- 

 ing this form. It flowers in June and July. 



It is said to have been cultivated in England before 1731 by 

 Ph. Miller. » 3 



It is known as the "White petal'd Lady's Slipper" '-'* and as 

 the "Showy or Pink Lady's Slipper." "^ 



The poisonous properties of this species are discussed by 

 MacDougaP " and the fact brought out that on some individuals 

 the result after handling is similar to that produced with 

 poison ivy. 



Cypripedium reginae Walt, is remarkable in its embryonic 

 development''" since the cellular structure shows no pro- 

 embryo or suspensor. 



(92) Gray, A. How Plants Behave. 31. 1872. 



(931 Alt. Hort. Kew. 5:220. 1812. 



(94) Loc. cit. 



(9.5) Gray, A. Man. Bot. ,511. 1890. 



(96) MacDougal. J. Minn. Bot. Studies, 1 : 32. 1894. 



(97) Van Tiegbeni. Ph. Traite de Botanique. 1 : 909. 1891. 



